IDENTIFIERS

Current Taxon Name (Soil Name): Fourmound

OSD

Series Extent

User Site ID: 00-MLW-20

User Pedon ID: S2000WA063002

Vegetation Plot ID: 00-MLW-20

User Site Association ID: SSR01 OSDs with Locations Verified

Lab Information:

Certified Lab Pedon Description - no

Lab Pedon # - 01P0251

NCSS Pedon Lab Data NASIS Record ID - 13083

Print Date: 12/17/2024

LOCATION

Location In Web Soil Survey

AOI is roughly a square mile and pedon is marked in the center.

Location in SoilWeb

Location in Google Maps

Std. Latitude: 47.7544174

Std. Longitude: -117.6440582

Datum: WGS84

Township: 26N

Range: 41E

Section: 16

PLSS Details: About 1670 feet south and 775 feet east of the northwest corner of

Location Description: about 1670 feet south and 775 feet east of the intersections of Dover and Burnett roads

Map Unit: 3114—Rockly-Fourmound complex, 0 to 15 percent slopes

State: Washington

County: WA063—Spokane

MLRA: 9—Palouse and Nez Perce Prairies

Non-MLRA Soil Survey Area: WA063—Spokane County, Washington

7.5 Minute USGS Quad: 47117-G6—Four Mound Prairie, Washington

PEDON

Describers Name: Mary Water

Current Taxonomic Class: Coarse-loamy, isotic, mesic Vitrandic Haploxerolls

Current Taxon Kind: series

Pedon Type: OSD pedon

Pedon Purpose: full pedon description

Pedon Record Orgin: NASIS

Correlated Information:

Soil Name - Fourmound (flagged as OSD)

PSC - 25 to 100 cm.

Classificaton Date - 2/10/2012

Soil Taxonomic Edition - eleventh edition

Moisture Class - xeric

Moisture Subclass - typic

Sampled As Information:

Soil Name - Fourmound

Classificaton Date - 8/10/2000

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: volcanic ash and/or loess over glaciofluvial deposits over residuum weathered from basalt

Landscape: scabland

Landform: patterned ground

Slope Shape Across: convex

Drainage Class: well

Flooding: none flooding

Ponding: none ponding

Bedrock: indurated basalt at 119cm

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 8/10/2000 (actual site observation date)

Plant Association Name: PIPO/SYAL

Surface Cover Properties:

Site Obs. Cover Kind 1 - tree cover

Site Obs. Cover Kind 2 - rangeland, grassland

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Current Weather - partly cloudy

Current Air Temp - 2

Vegetation Plot Plants
Plant Symbol	Scientific Name	National Vernacular Name	Plant Type Group	Canopy Cover %	Vegetation Stata Level
AMAL2 FEID FRAGA LUPIN PIPO POTEN SYMPH	Amelanchier alnifolia Festuca idahoensis Fragaria Lupinus Pinus ponderosa Potentilla Symphoricarpos	Saskatoon serviceberry Idaho fescue strawberry lupine ponderosa pine cinquefoil snowberry	— — — — — — —	— — — — — — —	— — — — — — —

Pedon Restrictions
Kind	Hardness	Restriction Depth L-H	Restriction Thickness L-RV-H
		cm
bedrock, lithic	indurated	119 - 144	—

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
mollic epipedon	0—38	—-

Setting and Climate
Slope	Slope Length USLE	Upslope Length	Elev.	Corr. Elev	Aspect	MAP	REAP	FFD	MAAT	MSAT	MWAT	MAST	MSST	MWST	MFFP	PE Index	Climate Station ID	Climate Station Name	Climate Station Type
%	m				degrees	mm	mm		C						mm
6	—	—	738	—	315	457	—	—	—	—	—	—	—	—	—	—	—	—	—

A1—0 to 10 centimeters (0.0 to 3.9 inches); brown (10YR 4/3) interior, very dark grayish brown (10YR 3/2) crushed, moist; gravelly ashy silt loam; 18 percent sand; 69 percent silt; 13 percent clay; strong medium granular, and strong fine granular structure; soft, very friable, slightly sticky, slightly plastic; moderate permeability; 8.0 very fine roots and 0.8 medium roots and 0.8 fine roots; 8.0 very fine irregular and 8.0 medium irregular and 8.0 fine irregular pores; 15 percent by volume subangular indurated 2-?-75 millimeter basalt fragments; noneffervescent; slightly acid, pH 6.5, hellige-truog; diffuse smooth boundary.; dry when described; observed in pit, large or quarry

A2—10 to 23 centimeters (3.9 to 9.1 inches); brown (10YR 5/3) interior, very dark grayish brown (10YR 3/2) crushed, moist; ashy silt loam; 20 percent sand; 68 percent silt; 12 percent clay; weak medium subangular blocky, and weak fine subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; moderate permeability; 8.0 very fine roots and 0.8 medium roots and 0.8 fine roots; 8.0 very fine irregular and 0.8 fine tubular pores; 10 percent by volume subangular indurated 2-?-75 millimeter basalt fragments; noneffervescent; slightly acid, pH 6.4, hellige-truog; gradual smooth boundary.; dry when described; observed in pit, large or quarry

A3—23 to 38 centimeters (9.1 to 15.0 inches); yellowish brown (10YR 5/4) interior, dark brown (10YR 3/3) crushed, moist; ashy silt loam; 19 percent sand; 69 percent silt; 12 percent clay; weak medium subangular blocky, and weak fine subangular blocky structure; slightly hard, very friable, slightly sticky, slightly plastic; moderate permeability; 3.0 very fine roots and 0.8 medium roots and 0.8 fine roots and 0.8 coarse roots; 8.0 very fine irregular and 0.8 medium tubular and 0.8 fine tubular pores; 10 percent by volume subangular indurated 2-?-75 millimeter basalt fragments; noneffervescent; slightly acid, pH 6.2, hellige-truog; gradual wavy boundary.; dry when described; observed in pit, large or quarry

Bw1—38 to 76 centimeters (15.0 to 29.9 inches); yellowish brown (10YR 5/4) interior, brown (10YR 4/3) crushed, moist; silt loam; 22 percent sand; 68 percent silt; 10 percent clay; weak medium subangular blocky, and weak fine subangular blocky structure; slightly hard, very friable, slightly sticky, slightly plastic; moderate permeability; 0.8 very fine roots and 3.0 medium roots and 0.8 fine roots and 0.8 coarse roots; 8.0 very fine irregular and 0.8 medium tubular and 0.8 fine tubular pores; 10 percent by volume subangular indurated 2-?-75 millimeter basalt fragments; noneffervescent; slightly acid, pH 6.1, hellige-truog; gradual wavy boundary.; dry when described; observed in pit, large or quarry

Bw2—76 to 109 centimeters (29.9 to 42.9 inches); light yellowish brown (10YR 6/4) interior, dark yellowish brown (10YR 4/4) crushed, moist; silt loam; 20 percent sand; 70 percent silt; 10 percent clay; weak fine subangular blocky, and weak medium subangular blocky structure; moderately hard, friable, slightly sticky, slightly plastic; moderate permeability; 0.8 very fine roots and 0.8 medium roots and 0.8 fine roots and 0.8 coarse roots; 8.0 very fine irregular and 0.8 very fine tubular and 0.8 fine tubular pores; 2 percent faint organic stains; 10 percent by volume subangular indurated 2-?-75 millimeter basalt fragments; noneffervescent; moderately acid, pH 5.8, hellige-truog; diffuse wavy boundary.; dry when described; observed in pit, large or quarry. patchy - phpvsfiid 20941; patchy - phpvsfiid 20941

2BC—109 to 119 centimeters (42.9 to 46.9 inches); light yellowish brown (2.5Y 6/4) interior, yellowish brown (10YR 5/4) crushed, moist; extremely gravelly silt loam; 16 percent sand; 74 percent silt; 10 percent clay; weak fine subangular blocky structure; slightly hard, very friable, nonsticky, nonplastic; moderate permeability; 0.8 very fine roots around fragments and 3.0 fine roots around fragments; 8.0 very fine irregular and 0.8 fine tubular pores; 70 percent by volume angular indurated 2-?-75 millimeter basalt fragments; noneffervescent; moderately acid, pH 5.8, hellige-truog; diffuse wavy boundary.; moist when described; observed in pit, large or quarry

2R—119 to 144 centimeters (46.9 to 56.7 inches); bedrock; fragments.; observed in pit, large or quarry